Elisha mets



'geiten faire @anni @Hire nLisHA Mars, or ROCHESTER., NEW YORK, n ssreNoR To HIMSELF AND A: CRAM, OE SAME PLACE, Leeeeee Pefeeee Ne. 70,879, ezeeeez Neeembee 12, 1867.

IMPROVED SLIDE FOR EXTENSION-TABLES.

@In Stimuli aferra tu im that tettits wat mit mating niet uitte time.

'.lO ALL WHOM IT MAY CONCERN:

Be it known that I, ELISHA METS, of Rochester, in the county of Monroe, and State of New York, have invented a new and useful Coupling for the Bars of Extension-Tables; and I do hereby declare that the following is a full, clear,`and exact description thereof, reference being 'had to the accompanying' drawings, making part 'of this specification, in Which- Figure 1 is a top view of a section of two bars coupled together, the dotted lines n and n representing the coupling-irons. Y

Figure 2is a transverse section of iig. 1 in the plane ze.

Figure 3 isasimilar view taken in the plane of the red line z, flg.'1; gs. 2 and 3 represent the bars B, full size.

Figure 4 represents a sort of V-shaped coupling-iron, which might be substituted for the plain dat ones shown in the other figures.

l Like letters indicate corresponding parts.

yThis invention consists in providing a verysimple, cheap, and' eicient coupling for the bars of extension dining-tables,-compos'ed of' two short sections or-strips -of bent iron, fixed, by screws or otherwise, at 'the end of each bar, in bevelled or oblique grooves sawed in the face of the bars.

To enable othersto make and use my invention, Iwill describe its construction and operation.

I prepare the-eitension-bars B of .the ordinary size and length. I then saw an oblique groove, g, in the face of each bar, near each edge, and grooves y in the opposite face. These grooves y and y should be sawed at such relative distance fromthe edge of the bars', those at both edges on one side cutting towards the edge, and those of the other side from it, that, when two bars are placed together, the grooves in one shall'just register to those of the other. The locking-irons It are made of narrow strips of wrought iron, just the thickness of the grooves, and they maybe about four inches long. Each end bar, in the series, is provided with two irons, h, at one end, and the intermediate bars have two irons at each end on opposite sides. The irons are firmly held to their respective bars by suitable screws 'sf The counter-cuts 2', for .the screw-heads, may be made by the same bit whichbores for the point and body of the screws. It might be found desirable to cut the groovesalike in both faces of the bars, in which case the grooves'would meet at an obtuse angle, when two bars were placed together, instead of being parallel to each other, as shown in the drawings. In such a case the irons would have to be bent laterally, as shown at a, iig. 2, and inv fig. 4. When the bars are drawn out the ironsof the diiferent bars strike those of another, thereby constituting their own stops. i

vWhat lclaim as my invention, and desire to secure by Letters Patent, is-

In combination with'the oblique grooves, substantially as herein shown and described, the bent coupling or locking-irons 7L, for the purposes set forth.

` l E. METs.

Witnesses:

FnnnA. Haren, WM. S. Louennonouen. 

